Art nouveau stained glass

If there's no art nouveau stained glass in the world, there will be no human.

art nouveau stained glass give people beauty. Beauty can adjust people's mood. A good mood
will improve people's work. The word becomes more beautiful because of art nouveau stained glass.

Art works inspire people. Everybody in the world need inspiration. That's how
people affect each other. That is how dead people affect living people. That's
the wealth of human inherited from ancestors.

Taking heads isn't my cup of tea, but I have less difficulty understanding the cultural bases of doing so than I do of the apparent inhumanity of, say, the Yanamano or (closer to home) of the Nazi movement of the middle third of the 20th century in what might arguably have been the most culturally advanced society in Europe at the end of the 19th century.

One point: mortal combat among animals of the same species is not common. The more usual pattern is stylized or ritualized combat over resources (usually territory), in which one member concedes without being killed or injured.

There's a wonderful book on the subject, called On Aggression. The author's name has momentarily left the page that my brain is scanning - one of the interesting phenomena that occurs with age. I'm completely confident that I will recall it in a little while, so the memory trace isn't gone, it's just temporarily inaccessible.